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Coding
3 years ago
How do you typically find the subsequence that yields the highest sum in an array?
Data Scientist

Ally

Course Hero

Deloitte

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3 years ago
Coding
3 years ago
What technique would you apply to compute the dot product of two sparse matrices?
Data ScientistMachine Learning Engineer

Ally

Tesla Logo

Tesla

Postmates Logo

Postmates

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3 years ago
Behavioral
3 years ago
How do you earn the trust of a team?
Data ScientistData Engineering ManagerEngineering ManagerUX Designer

Ally

Western Digital Logo

Western Digital

FleetSmith Logo

FleetSmith

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3 years ago
Behavioral
3 years ago
Give me one thing about you that isn't in your resume.
Data ScientistEngineering ManagerUX DesignerUX Researcher

Ally

Superhuman Logo

Superhuman

DeliveryHero Logo

DeliveryHero

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3 years ago
ML Knowledge
3 years ago
When presented with a high-dimensional dataset in a machine learning challenge, how would you approach it?
Data Scientist

Ally

Atlassian Logo

Atlassian

Visa Logo

Visa

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3 years ago
Coding
3 years ago
Find the maximum sum path that goes through the root of a tree and return its sum.
Data Scientist

Ally

Noom Logo

Noom

Airbnb Logo

Airbnb

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3 years ago
Behavioral
3 years ago
In your current role, what do you consider your biggest achievements?
Data ScientistData Science ManagerEngineering ManagerUX Designer

Ally

Tableau Logo

Tableau

N26 Logo

N26

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3 years ago
ML Knowledge
3 years ago
What do you think makes feature selection such an important aspect of machine learning?
Data Scientist

Ally

Swiggy Logo

Swiggy

Noon Logo

Noon

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3 years ago
Coding
3 years ago
Write a program to find the longest increasing subarray in an array using dynamic programming.
Data Scientist

Ally

StubHub Logo

StubHub

Chime Logo

Chime

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3 years ago
ML Knowledge
3 years ago
When assessing a model's performance, how do you decide between using a confusion matrix or an ROC curve?
Data ScientistMachine Learning Engineer

Ally

Udacity Logo

Udacity

Splunk Logo

Splunk

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3 years ago

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*All interview questions are submitted by recent Ally Data Scientist candidates, labelled and categorized by Prepfully, and then published after being verified by Data Scientists at Ally.

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